|
| year | imports | change |
| 1980 | 5.51 | NA |
| 1981 | 5.51 | 0.00 % |
| 1982 | 2.20 | -60.00 % |
| 1983 | 2.20 | 0.00 % |
| 1984 | 2.20 | 0.00 % |
| 1985 | 1.10 | -50.00 % |
| 1986 | 1.10 | 0.00 % |
| 1987 | 2.20 | 100.00 % |
| 1988 | 1.10 | -50.00 % |
| 1989 | 1.10 | 0.00 % |
| 1990 | 1.10 | 0.00 % |
| 1991 | .55 | -50.00 % |
| 1992 | .44 | -20.00 % |
| 1993 | 2.29 | 418.58 % |
| 1994 | 4.54 | 98.38 % |
| 1995 | 3.64 | -19.65 % |
| 1996 | 1.27 | -65.22 % |
| 1997 | 1.28 | 0.87 % |
| 1998 | 1.28 | 0.00 % |
| 1999 | 1.94 | 51.72 % |
| 2000 | .79 | -59.09 % |
| 2001 | 1.60 | 101.39 % |
| 2002 | 2.56 | 60.00 % |
| 2003 | 1.93 | -24.57 % |
| 2004 | 2.36 | 22.29 % |
| 2005 | 3.04 | 28.97 % |
| 2006 | 3.51 | 15.22 % |
| 2007 | 4.30 | 22.64 % |
| 2008 | 2.60 | -39.49 % |
| 2009 | 3.01 | 15.68 % |
| 2010 | 4.74 | 57.51 % |
| 2011 | 2.84 | -40.00 % |
|
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